Abstract: A heater includes an aluminum die cast body defining an enclosure and an adaptor block. A heating element within the enclosure activates, under control of an associated heat sensing device, a heating element within the enclosure to transfer heat energy into the adaptor block. The adaptor block, including features specific to a given mechanical device, e.g., pneumatic valve or pump, transfers the heat energy into the mechanical device to avoid a frozen condition resulting from, for example, sudden expansion of air when passing through the device.

Abstract: A heat radiating board and a method for cooling by utilizing the same based on a novel principle of heat gradient. The heat radiating board, which is disposed between a high temperature zone and a low temperature zone, consists of a metal plate and a heat gradient-forming layer laminated on the surface thereof facing the low temperature zone, this heat gradient-forming layer being formed from a heat conductive material having a heat volume and an absorption of heat of radiation smaller than the metal plate.